Problems with initial setup of SES Arm

[puzzleryu]

HI All,
I’m new of this forum. I live in Italy and I’ve buyed the SES Arm, assembled it and tested it, and it seems to work fine with the LynxTerm.
Anyway, if I try to setup the arm with the RIOS software, I can’t get the arm in the right initial position (I mean the position listed in the manual, page 3/20), in fact, if I click on ‘All=1500mS’ the elbow-wrist part tries to move up, but then it falls down immediately.
Can some of you help me with this? Is it normal or I have made mistake on something?

Thanks in advance.

[robotdude]

@puzzleryu

HI All,
I’m new of this forum. I live in Italy and I’ve buyed the SES Arm, assembled it and tested it, and it seems to work fine with the LynxTerm.
Anyway, if I try to setup the arm with the RIOS software, I can’t get the arm in the right initial position (I mean the position listed in the manual, page 3/20), in fact, if I click on ‘All=1500mS’ the elbow-wrist part tries to move up, but then it falls down immediately.
Can some of you help me with this? Is it normal or I have made mistake on something?

Thanks in advance.

This is a classic case of insufficient power on the servo power line (VS) to power the servos AND the microcontroller logic power line (VL).

lynxmotion.net/viewtopic.php?t=2401

Look carefully at image 2.

[puzzleryu]

Hi Robot Dude,
first of all, thank you very much for your reply
I want to ask another thing: since I have a power adapter of 6V, 2A, if I don’t want to use batteries, can I put another power adapter with a voltage that covers the batteries one?

Thank you in advance.

[robotdude]

@puzzleryu

Hi Robot Dude,
first of all, thank you very much for your reply
I want to ask another thing: since I have a power adapter of 6V, 2A, if I don’t want to use batteries, can I put another power adapter with a voltage that covers the batteries one?

Thank you in advance.

As long as you remove the VS1 = VL jumper you can power both of the two terminals with wall adapters.

[puzzleryu]

Thanks, I will try in both ways

[puzzleryu]

Just a question: what about if I put a single wall adapter of 12V instead of using two separate batteries?

Thanks in advance.

[robotdude]

@puzzleryu

Just a question: what about if I put a single wall adapter of 12V instead of using two separate batteries?

Thanks in advance.

Ug…

No no no no no…

You see, there are two separate things being powered and neither of them can handle 12vdc. You really do need two separate supplies. 8)

[eddieb]

with the music to the song “who let the dog out” going in my head…

Whoo let the smoke out?
Smoke!
Smoke!

[scud]

You called?

Oh wait, no…

[sn96]

@ScuD

You called?

Oh wait, no…

I managed to let the magic smoke out using only 6v… I reversed polarity

[puzzleryu]

Thank you Robot Dude, I tried to put an external battery for the controller and leaved the wall adapter for the servos and it works now

Just another question: I see that the led is not everytime turned on. So I think that there is some power saving system in the controller when it’s not used for a certain amount of time?

[robotdude]

@puzzleryu

Thank you Robot Dude, I tried to put an external battery for the controller and leaved the wall adapter for the servos and it works now

Just another question: I see that the led is not everytime turned on. So I think that there is some power saving system in the controller when it’s not used for a certain amount of time?

The LED on the SSC-32 is not a power indicator, but rather a status indicator. On power up it is on until it receives a valid command, then it goes out and only blinks when receiving data. If it ever goes on steady that means it had a power brownout and was reset.